a white, crystalline B vitamin, CHClNOS, found in the outer coating of cereal grains, green peas, beans, egg yolk, liver, etc., and also prepared synthetically; vitamin B: a deficiency of this vitamin results in beriberi and certain nervous disorders
A water-soluble pyrimidine derivative belonging to the vitamin B complex that is important in carbohydrate metabolism and normal activity of the nervous system. It is found in pork, organ meats, whole grain cereals, legumes, and nuts. Deficiency of thiamine in the diet results in beriberi. Also called vitamin B1. Chemical formula:C12H17ClN4OS.